ISSN 0862-5468 (Print), ISSN 1804-5847 (online) 

Ceramics-Silikáty 31, (4) 309 - 315 (1987)


VAPORIZATION OF SIMPLE SUBSTANCES USED IN GLASS MELTING

III. Vaporization of Sodium Tetraborate Melt


 
Hlaváč Jan, Plášil Ivan
 
Department of the Technology of Silicates, Institute of Chemical Technology, Suchbátarova 5, 166 28 Prague 6

The transpiration method was used to measure the density of melted borax vapours at 900 to 1115 °C in nitrogen atmosphere and in nitrogen-water vapour mixtures. The results imply a relatively small effect of water vapour on the density of borate vapours and are indicative of quasi-congruent vaporization resulting from the reaction of the melt with water vapour.


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